Fear of memories: the nature of panic in posttraumatic stress disorder

BACKGROUND: Although there is increasing evidence that panic attacks are common in posttraumatic stress disorder (PTSD), little is known if posttraumatic panic is comparable to panic attacks observed in panic disorder (PD). OBJECTIVE: This study examined the cognitive responses to panic attacks in participants with PD and PTSD. METHOD: Participants with PD (n=22) and PTSD (n=18) were assessed on the Anxiety Disorder Interview Schedule for DSM-IV and subsequently administered the Agoraphobic Cognitions Questionnaire and a measure of fears related to trauma memories. RESULTS: Although participants did not differ in terms of catastrophic appraisals about somatic sensations, PTSD participants were more likely to experience fears about trauma memories and being harmed by trauma again during their panic attacks than PD participants. CONCLUSIONS: These findings suggest that although PTSD participants fear somatic outcomes during panic attacks, their panic attacks are distinguished by a marked fear of trauma memories.